在node.js中使用blob的url和sas令牌下载blob

npm install azure-storage

const azure = require('azure-storage');

const blobService = azure.createBlobService(connectionString);

const sharedAccessPolicy = {
  AccessPolicy: {
    Permissions: azure.BlobUtilities.SharedAccessPermissions.READ,
    Start: startDate,
    Expiry: expiryDate
  }
};

const sasToken = blobService.generateSharedAccessSignature(containerName, blobName, sharedAccessPolicy);

const blobUrl = blobService.getUrl(containerName, blobName, sasToken);

const azure = require('azure-storage');

const connectionString = 'your-storage-account-connection-string';
const containerName = 'your-container-name';
const blobName = 'your-blob-name';
const startDate = new Date();
const expiryDate = new Date(startDate);
expiryDate.setMinutes(startDate.getMinutes() + 5); // 设置SAS令牌的有效期为5分钟

const blobService = azure.createBlobService(connectionString);

const sharedAccessPolicy = {
  AccessPolicy: {
    Permissions: azure.BlobUtilities.SharedAccessPermissions.READ,
    Start: startDate,
    Expiry: expiryDate
  }
};

const sasToken = blobService.generateSharedAccessSignature(containerName, blobName, sharedAccessPolicy);
const blobUrl = blobService.getUrl(containerName, blobName, sasToken);

console.log('Blob URL:', blobUrl);